/* roulang page: index */
:root {
  --primary: #101630;
  --primary-light: #1B2245;
  --accent: #F5B942;
  --accent-dark: #E0A52E;
  --purple: #7C6CEE;
  --purple-light: #EAE7FD;
  --bg-light: #F6F7FB;
  --card-bg: #FFFFFF;
  --text-main: #23263B;
  --text-sub: #6B7280;
  --border: #E5E7EB;
  --radius-lg: 12px;
  --radius-md: 8px;
  --radius-sm: 20px;
  --shadow: 0 2px 12px rgba(16,22,48,0.06);
  --shadow-hover: 0 10px 28px rgba(16,22,48,0.12);
  --font: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: var(--font);
  color: var(--text-main);
  background: var(--bg-light);
  line-height: 1.75;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: all .3s ease; }
button { border: none; background: none; font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; }
.container-custom { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* header */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(16,22,48,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: all .4s ease;
}
.site-header.scrolled {
  background: rgba(16,22,48,0.98);
  box-shadow: 0 4px 24px rgba(0,0,0,0.3);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-icon {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--accent), #FFD76E);
  border-radius: 10px;
  color: var(--primary);
  font-size: 18px;
  box-shadow: 0 4px 12px rgba(245,185,66,0.3);
}
.brand-text {
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 1px;
}
.brand-text span { color: var(--accent); }
.main-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  margin: 0 auto;
}
.main-nav a {
  color: rgba(255,255,255,0.85);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 2px;
  position: relative;
}
.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 0; height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: all .3s ease;
}
.main-nav a:hover { color: var(--accent); }
.main-nav a:hover::after { width: 100%; }
.main-nav a.active { color: var(--accent); font-weight: 600; }
.main-nav a.active::after { width: 100%; }
.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}
.search-box {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 20px;
  padding: 6px 16px;
  width: 220px;
  transition: all .3s ease;
}
.search-box:focus-within {
  border-color: var(--accent);
  background: rgba(255,255,255,0.18);
  box-shadow: 0 0 0 3px rgba(245,185,66,0.15);
}
.search-box input {
  background: transparent;
  border: none;
  outline: none;
  color: #fff;
  font-size: 13px;
  width: 100%;
  margin-left: 8px;
}
.search-box input::placeholder { color: rgba(255,255,255,0.5); }
.search-box i { color: rgba(255,255,255,0.6); font-size: 13px; }
.login-link {
  color: rgba(255,255,255,0.9);
  font-size: 14px;
  font-weight: 500;
  padding: 6px 4px;
}
.login-link:hover { color: var(--accent); }
.btn-free-login {
  background: var(--accent);
  color: var(--primary);
  font-size: 14px;
  font-weight: 700;
  padding: 10px 22px;
  border-radius: var(--radius-md);
  transition: all .3s ease;
  height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.btn-free-login:hover {
  background: #FFD15C;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(245,185,66,0.35);
  color: var(--primary);
}
.mobile-toggle {
  display: none;
  color: #fff;
  font-size: 24px;
  cursor: pointer;
  padding: 6px;
}
.mobile-drawer {
  display: none;
  position: fixed;
  top: 0; right: -320px;
  width: 300px;
  height: 100vh;
  background: var(--primary);
  z-index: 1002;
  padding: 24px;
  box-shadow: -8px 0 30px rgba(0,0,0,0.3);
  transition: right .4s ease;
  overflow-y: auto;
}
.mobile-drawer.open { right: 0; }
.drawer-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
  z-index: 1001;
}
.mobile-drawer .drawer-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 30px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.mobile-drawer .drawer-close { color: #fff; font-size: 22px; cursor: pointer; }
.mobile-drawer .drawer-nav { display: flex; flex-direction: column; gap: 6px; }
.mobile-drawer .drawer-nav a {
  color: rgba(255,255,255,0.85);
  padding: 12px 14px;
  border-radius: 8px;
  font-size: 15px;
}
.mobile-drawer .drawer-nav a:hover, .mobile-drawer .drawer-nav a.active {
  background: rgba(245,185,66,0.1);
  color: var(--accent);
}
.mobile-drawer .drawer-btn {
  margin-top: 20px;
  width: 100%;
  justify-content: center;
  background: var(--accent);
  color: var(--primary);
  padding: 14px;
  border-radius: 8px;
  font-weight: 700;
  text-align: center;
  font-size: 15px;
}
.mobile-drawer .drawer-search {
  display: flex; align-items: center;
  background: rgba(255,255,255,0.1);
  border-radius: 20px;
  padding: 8px 16px;
  margin-bottom: 24px;
  border: 1px solid rgba(255,255,255,0.15);
}
.mobile-drawer .drawer-search input {
  background: transparent; border: none; outline: none;
  color: #fff; width: 100%; margin-left: 8px; font-size: 14px;
}

/* hero */
.hero-section {
  background: linear-gradient(135deg, #0E1330 0%, #1A2450 50%, #262D5E 100%);
  min-height: 80vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 0 80px;
}
.hero-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: radial-gradient(circle at 20% 50%, rgba(255,255,255,0.12) 1px, transparent 1px),
                    radial-gradient(circle at 70% 30%, rgba(255,255,255,0.08) 1px, transparent 1px),
                    radial-gradient(circle at 85% 70%, rgba(255,255,255,0.1) 1px, transparent 1px);
  background-size: 60px 60px, 100px 100px, 80px 80px;
  pointer-events: none;
}
.hero-bg-image {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.25;
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
  color: #fff;
  max-width: 640px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245,185,66,0.15);
  border: 1px solid rgba(245,185,66,0.3);
  color: var(--accent);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 24px;
}
.hero-title {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 20px;
  color: #fff;
}
.hero-title .highlight {
  background: linear-gradient(90deg, var(--accent), #FFD76E);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: 18px;
  color: rgba(255,255,255,0.75);
  line-height: 1.8;
  margin-bottom: 32px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.btn-hero-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: var(--primary);
  font-size: 16px;
  font-weight: 700;
  padding: 14px 32px;
  border-radius: var(--radius-md);
  transition: all .3s ease;
  height: 48px;
}
.btn-hero-primary:hover {
  background: #FFD15C;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(245,185,66,0.4);
  color: var(--primary);
}
.btn-hero-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  padding: 14px 32px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,0.4);
  transition: all .3s ease;
  height: 48px;
}
.btn-hero-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.hero-features {
  display: flex;
  gap: 24px;
  margin-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 28px;
}
.hero-feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: rgba(255,255,255,0.7);
}
.hero-feature-item i {
  color: var(--accent);
  font-size: 16px;
}
.hero-cover {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 45%;
  height: 70%;
  z-index: 1;
  opacity: 0.85;
}
.hero-cover img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: bottom right;
}
.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.5);
  font-size: 22px;
  animation: bounce 2s infinite;
  z-index: 5;
}
@keyframes bounce {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, 8px); }
}

/* section base */
.section-padding { padding: 90px 0; }
.section-bg-light { background: var(--bg-light); }
.section-bg-white { background: #fff; }
.section-bg-dark { background: var(--primary); }
.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 60px;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--purple);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-title {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--text-main);
  margin-bottom: 16px;
}
.section-desc {
  font-size: 16px;
  color: var(--text-sub);
  line-height: 1.7;
}

/* core services */
.core-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 20px;
}
.core-grid .core-card:last-child {
  grid-column: 2;
}
.core-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: all .4s ease;
  position: relative;
  overflow: hidden;
}
.core-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 0;
  background: var(--accent);
  transition: height .4s ease;
}
.core-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.core-card:hover::before { height: 100%; }
.core-card-icon {
  width: 52px; height: 52px;
  background: linear-gradient(135deg, var(--accent), #FFD76E);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  color: var(--primary);
  margin-bottom: 20px;
  box-shadow: 0 6px 16px rgba(245,185,66,0.3);
}
.core-card:nth-child(even) .core-card-icon {
  background: linear-gradient(135deg, var(--purple), #A59BFF);
  box-shadow: 0 6px 16px rgba(124,108,238,0.3);
}
.core-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-main);
}
.core-card p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 18px;
}
.core-card-link {
  color: var(--purple);
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.core-card-link:hover { color: var(--accent); gap: 10px; }

/* data stats */
.stats-section {
  background: linear-gradient(135deg, #101630 0%, #1B2245 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.stats-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: radial-gradient(circle at 80% 20%, rgba(124,108,238,0.15) 0%, transparent 40%);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  position: relative;
  z-index: 2;
  text-align: center;
}
.stat-item {
  padding: 20px 10px;
  position: relative;
}
.stat-item:not(:first-child)::before {
  content: '';
  position: absolute;
  left: -20px; top: 50%;
  transform: translateY(-50%);
  width: 1px; height: 70px;
  background: rgba(255,255,255,0.1);
}
.stat-number {
  font-size: 44px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
  margin-bottom: 8px;
}
.stat-number .suffix { font-size: 24px; }
.stat-label {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  letter-spacing: 1px;
}
.stats-divider {
  height: 1px;
  background: rgba(255,255,255,0.1);
  margin-top: 40px;
}

/* cases */
.cases-grid {
  display: flex;
  flex-direction: column;
  gap: 40px;
}
.case-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: all .4s ease;
}
.case-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.case-card:nth-child(even) .case-image { order: 2; }
.case-image {
  height: 300px;
  overflow: hidden;
  background: linear-gradient(135deg, #1B2245, #2A3461);
}
.case-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}
.case-card:hover .case-image img { transform: scale(1.05); }
.case-body { padding: 24px 32px; }
.case-tag {
  display: inline-block;
  background: var(--purple-light);
  color: var(--purple);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 14px;
}
.case-body h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-main);
}
.case-body p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.8;
  margin-bottom: 20px;
}
.case-link {
  color: var(--accent);
  font-weight: 600;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.case-link:hover { gap: 12px; color: var(--accent-dark); }

/* scenario tabs */
.scenario-section { background: #fff; }
.scenario-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 40px;
  margin-top: 20px;
}
.scenario-tabs {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.scenario-tab {
  text-align: left;
  padding: 14px 20px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-sub);
  background: transparent;
  border-left: 4px solid transparent;
  transition: all .3s ease;
}
.scenario-tab:hover {
  background: var(--bg-light);
  color: var(--text-main);
}
.scenario-tab.active {
  background: var(--bg-light);
  color: var(--text-main);
  font-weight: 700;
  border-left-color: var(--accent);
}
.scenario-tab i {
  margin-right: 10px;
  color: var(--purple);
  width: 20px;
}
.scenario-panel {
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  padding: 40px;
  min-height: 280px;
  display: none;
  animation: fadeIn .3s ease;
}
.scenario-panel.active { display: block; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
.scenario-panel h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text-main);
}
.scenario-panel p {
  font-size: 15px;
  color: var(--text-sub);
  line-height: 1.8;
  margin-bottom: 20px;
}
.scenario-panel ul {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.scenario-panel ul li {
  padding: 12px 16px;
  background: #fff;
  border-radius: 8px;
  font-size: 14px;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
}
.scenario-panel ul li i {
  color: var(--accent);
  font-size: 13px;
}

/* news list */
.news-section { background: var(--bg-light); }
.news-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
}
.news-header-row .section-left {
  display: flex;
  align-items: center;
  gap: 12px;
}
.news-view-all {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--purple);
  font-weight: 600;
  font-size: 14px;
  padding: 8px 20px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: #fff;
  transition: all .3s ease;
}
.news-view-all:hover {
  border-color: var(--purple);
  background: var(--purple-light);
}
.news-list {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
  border: 1px solid var(--border);
}
.news-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px 28px;
  border-bottom: 1px solid var(--border);
  transition: all .3s ease;
}
.news-item:last-child { border-bottom: none; }
.news-item:hover {
  background: var(--bg-light);
  padding-left: 32px;
}
.news-item-tag {
  background: var(--purple-light);
  color: var(--purple);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 20px;
  white-space: nowrap;
  flex-shrink: 0;
}
.news-item-content {
  flex: 1;
  min-width: 0;
}
.news-item-content a {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 4px;
}
.news-item-content a:hover { color: var(--purple); }
.news-item-content p {
  font-size: 13px;
  color: var(--text-sub);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.news-item-time {
  color: var(--text-sub);
  font-size: 13px;
  white-space: nowrap;
  flex-shrink: 0;
}
.news-empty {
  padding: 60px 20px;
  text-align: center;
}
.news-empty i {
  font-size: 48px;
  color: var(--border);
  margin-bottom: 16px;
  display: block;
}
.news-empty p {
  color: var(--text-sub);
  font-size: 15px;
}

/* faq */
.faq-section { background: #fff; }
.faq-container {
  max-width: 800px;
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item:first-child { border-top: 1px solid var(--border); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 16px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  transition: background .3s ease;
}
.faq-question:hover { background: var(--bg-light); }
.faq-question i {
  transition: transform .3s ease;
  color: var(--purple);
  font-size: 18px;
}
.faq-item.open .faq-question i { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease;
  padding: 0 16px;
}
.faq-item.open .faq-answer {
  max-height: 300px;
  padding-bottom: 24px;
}
.faq-answer p {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.8;
}

/* cta contact */
.cta-section {
  background: linear-gradient(135deg, #101630 0%, #1B2245 80%);
  color: #fff;
  position: relative;
  overflow: hidden;
  padding: 90px 0;
}
.cta-section::before {
  content: '';
  position: absolute;
  top: -50%; right: -20%;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(124,108,238,0.2) 0%, transparent 60%);
  pointer-events: none;
}
.cta-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 2;
}
.cta-heading {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 20px;
}
.cta-heading span { color: var(--accent); }
.cta-desc {
  font-size: 16px;
  color: rgba(255,255,255,0.7);
  line-height: 1.8;
  margin-bottom: 32px;
}
.cta-features {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.cta-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: rgba(255,255,255,0.8);
}
.cta-features li i {
  color: var(--accent);
  font-size: 14px;
  width: 28px;
  height: 28px;
  background: rgba(245,185,66,0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cta-form-wrap {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 40px;
  backdrop-filter: blur(10px);
}
.cta-form-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 24px;
}
.cta-form .form-control {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  color: #fff;
  margin-bottom: 16px;
  font-size: 14px;
  transition: all .3s ease;
}
.cta-form .form-control:focus {
  background: rgba(255,255,255,0.12);
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(245,185,66,0.15);
  color: #fff;
}
.cta-form .form-control::placeholder { color: rgba(255,255,255,0.4); }
.cta-form textarea.form-control { min-height: 100px; resize: vertical; }
.btn-submit {
  background: var(--accent);
  color: var(--primary);
  font-weight: 700;
  font-size: 15px;
  padding: 14px 24px;
  border-radius: var(--radius-md);
  width: 100%;
  transition: all .3s ease;
  margin-top: 8px;
}
.btn-submit:hover {
  background: #FFD15C;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(245,185,66,0.3);
}

/* footer */
.site-footer {
  background: var(--primary);
  color: rgba(255,255,255,0.75);
  padding: 80px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 50px;
  margin-bottom: 50px;
}
.footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-brand .brand-icon { width: 32px; height: 32px; font-size: 16px; }
.footer-brand span { font-size: 18px; font-weight: 800; color: #fff; }
.footer-brand span i { color: var(--accent); }
.footer-desc { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,0.6); }
.footer-col-title {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
}
.footer-links { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  transition: all .3s ease;
}
.footer-links a:hover { color: var(--accent); padding-left: 4px; }
.footer-contact { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
}
.footer-contact li i {
  color: var(--accent);
  width: 20px;
  text-align: center;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p {
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}
.footer-bottom a { color: rgba(255,255,255,0.4); }
.footer-bottom a:hover { color: var(--accent); }

/* responsive */
@media (max-width: 1199px) {
  .main-nav { gap: 20px; }
  .search-box { width: 180px; }
  .case-body { padding: 20px 24px; }
}
@media (max-width: 991px) {
  .main-nav { display: none; }
  .header-actions .search-box, .header-actions .login-link, .header-actions .btn-free-login { display: none; }
  .mobile-toggle { display: block; }
  .mobile-drawer { display: block; }
  .drawer-overlay.show { display: block; }
  .hero-section { padding: 100px 0 60px; }
  .hero-title { font-size: 36px; }
  .hero-cover { width: 55%; opacity: 0.5; }
  .core-grid { grid-template-columns: 1fr 1fr; }
  .core-grid .core-card:last-child { grid-column: auto; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .stat-item:not(:first-child)::before { display: none; }
  .case-card { grid-template-columns: 1fr; }
  .case-card:nth-child(even) .case-image { order: 0; }
  .case-image { height: 220px; }
  .scenario-layout { grid-template-columns: 1fr; }
  .scenario-tabs { flex-direction: row; overflow-x: auto; }
  .scenario-tab { white-space: nowrap; border-left: none; border-bottom: 3px solid transparent; }
  .scenario-tab.active { border-left-color: transparent; border-bottom-color: var(--accent); }
  .cta-layout { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
}
@media (max-width: 767px) {
  .section-padding { padding: 60px 0; }
  .section-title { font-size: 26px; }
  .hero-title { font-size: 28px; }
  .hero-subtitle { font-size: 16px; }
  .hero-features { flex-direction: column; gap: 12px; }
  .hero-actions { flex-direction: column; width: 100%; }
  .btn-hero-primary, .btn-hero-outline { width: 100%; justify-content: center; }
  .core-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-number { font-size: 32px; }
  .case-body h3 { font-size: 18px; }
  .scenario-panel { padding: 24px; }
  .scenario-panel ul { grid-template-columns: 1fr; }
  .news-item { flex-direction: column; align-items: flex-start; gap: 8px; padding: 18px 20px; }
  .news-item:hover { padding-left: 20px; }
  .news-item-time { align-self: flex-end; }
  .cta-form-wrap { padding: 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .container-custom { padding: 0 16px; }
}

/* roulang page: category1 */
:root {
            --ink-night: #101630;
            --gold: #F5B942;
            --violet: #7C6CEE;
            --bg-light: #F6F7FB;
            --card-bg: #FFFFFF;
            --text-main: #23263B;
            --text-sub: #6B7280;
            --border: #E5E7EB;
            --radius-card: 12px;
            --radius-btn: 8px;
            --shadow-default: 0 2px 12px rgba(16, 22, 48, 0.06);
            --shadow-hover: 0 10px 28px rgba(16, 22, 48, 0.12);
            --font: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font);
            margin: 0;
            background: #fff;
            color: var(--text-main);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        img {
            max-width: 100%;
            height: auto;
        }
        button,
        input {
            font-family: inherit;
        }
        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ========= HEADER ========= */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(255, 255, 255, 0.96);
            height: 64px;
            box-shadow: 0 1px 6px rgba(16, 22, 48, 0.06);
            transition: background .3s ease, box-shadow .3s ease;
        }
        .site-header.scrolled {
            background: #ffffff;
            box-shadow: 0 4px 20px rgba(16, 22, 48, 0.12);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 16px;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 20px;
            color: var(--ink-night);
            white-space: nowrap;
        }
        .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: linear-gradient(135deg, var(--gold), var(--violet));
            color: #fff;
            font-size: 14px;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .main-nav a {
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-sub);
            transition: color .2s, background .2s;
        }
        .main-nav a:hover {
            color: var(--ink-night);
            background: #f0f1f7;
        }
        .main-nav a.active {
            color: var(--gold);
            font-weight: 700;
            background: rgba(245, 185, 66, 0.10);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-wrap {
            position: relative;
            width: 220px;
        }
        .search-wrap i {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: #9ca3af;
            font-size: 13px;
        }
        .search-wrap input {
            width: 100%;
            height: 40px;
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 0 14px 0 36px;
            font-size: 13px;
            background: #fafbfe;
            outline: none;
            transition: border-color .2s, box-shadow .2s, background .2s;
        }
        .search-wrap input:focus {
            border-color: var(--gold);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(245, 185, 66, 0.18);
        }
        .login-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            white-space: nowrap;
            padding: 6px 8px;
        }
        .login-link:hover {
            color: var(--gold);
        }
        .btn-gold {
            background: var(--gold);
            color: var(--ink-night) !important;
            border: none;
            font-weight: 700;
            border-radius: var(--radius-btn);
            height: 40px;
            padding: 0 20px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            transition: all .25s ease;
            white-space: nowrap;
        }
        .btn-gold:hover {
            background: #ffc966;
            box-shadow: 0 6px 18px rgba(245, 185, 66, 0.35);
            transform: translateY(-1px);
        }
        .btn-gold:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(245, 185, 66, 0.2);
        }
        .btn-outline-light {
            border: 1px solid rgba(255, 255, 255, 0.7);
            color: #fff;
            border-radius: var(--radius-btn);
            height: 40px;
            padding: 0 20px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 500;
            background: transparent;
            font-size: 14px;
            transition: all .25s ease;
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--ink-night);
            padding: 6px 10px;
            border-radius: 8px;
        }
        .nav-toggle:focus {
            outline: 2px solid var(--gold);
        }

        /* Mobile Drawer */
        .drawer-mask {
            position: fixed;
            inset: 0;
            background: rgba(16, 22, 48, 0.5);
            z-index: 1100;
            opacity: 0;
            visibility: hidden;
            transition: opacity .3s, visibility .3s;
        }
        .drawer-mask.show {
            opacity: 1;
            visibility: visible;
        }
        .drawer-panel {
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            height: 100%;
            background: #fff;
            z-index: 1101;
            padding: 24px;
            transition: right .35s ease;
            box-shadow: -8px 0 30px rgba(16, 22, 48, 0.15);
            display: flex;
            flex-direction: column;
            gap: 20px;
            overflow-y: auto;
        }
        .drawer-panel.open {
            right: 0;
        }
        .drawer-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .drawer-close {
            border: none;
            background: #f0f1f7;
            width: 36px;
            height: 36px;
            border-radius: 8px;
            font-size: 16px;
            color: var(--text-main);
        }
        .drawer-panel .search-wrap {
            width: 100%;
        }
        .drawer-panel .main-nav {
            flex-direction: column;
            align-items: stretch;
            gap: 4px;
        }
        .drawer-panel .main-nav a {
            display: block;
            padding: 12px 14px;
            border-radius: 8px;
            font-size: 15px;
            text-align: center;
            background: var(--bg-light);
        }
        .drawer-panel .main-nav a.active {
            background: rgba(245, 185, 66, 0.12);
            color: var(--gold);
            font-weight: 700;
        }
        .drawer-login {
            width: 100%;
            height: 44px;
        }

        /* ========= PAGE BANNER ========= */
        .page-banner {
            position: relative;
            background-size: cover;
            background-position: center;
            padding: 96px 0 88px;
            color: #fff;
        }
        .banner-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(16, 22, 48, 0.92) 0%, rgba(16, 22, 48, 0.72) 55%, rgba(124, 108, 238, 0.35) 100%);
        }
        .banner-content {
            position: relative;
            z-index: 2;
        }
        .banner-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(245, 185, 66, 0.18);
            border: 1px solid rgba(245, 185, 66, 0.4);
            color: var(--gold);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 20px;
            margin-bottom: 20px;
        }
        .banner-content h1 {
            font-size: 42px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }
        .banner-content p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.88);
            max-width: 680px;
            margin-bottom: 28px;
        }
        .banner-btn-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ========= SECTION ========= */
        .section {
            padding: 84px 0;
        }
        .section-sm {
            padding: 56px 0;
        }
        .section-header {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 48px;
        }
        .section-header .sec-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--violet);
            background: rgba(124, 108, 238, 0.08);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
        }
        .section-header h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--ink-night);
            line-height: 1.3;
            margin-bottom: 14px;
        }
        .section-header p {
            color: var(--text-sub);
            font-size: 15px;
        }
        .section.bg-light {
            background: var(--bg-light);
        }
        .section.bg-dark {
            background: var(--ink-night);
        }

        /* ========= SERVICE CARDS ========= */
        .service-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            box-shadow: var(--shadow-default);
            height: 100%;
            border: 1px solid transparent;
            transition: box-shadow .3s, transform .3s, border-color .3s;
        }
        .service-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(245, 185, 66, 0.3);
        }
        .service-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 18px;
            color: #fff;
            background: linear-gradient(135deg, var(--gold), #ffd483);
        }
        .service-icon.violet {
            background: linear-gradient(135deg, var(--violet), #a99cf5);
        }
        .service-icon.ocean {
            background: linear-gradient(135deg, #4f7df0, #7ab4ff);
        }
        .service-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--ink-night);
        }
        .service-card p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .service-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--gold);
        }
        .service-link:hover {
            color: #d99d1f;
            text-decoration: underline;
        }
        .service-card-featured {
            border-left: 4px solid var(--gold);
        }

        /* ========= STEPS ========= */
        .step-item {
            text-align: center;
            padding: 24px 16px;
            position: relative;
        }
        .step-num {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--ink-night);
            color: var(--gold);
            font-size: 20px;
            font-weight: 800;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            box-shadow: 0 6px 16px rgba(16, 22, 48, 0.2);
        }
        .step-item h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--ink-night);
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 14px;
            color: var(--text-sub);
        }
        .step-arrow {
            position: absolute;
            top: 40px;
            right: -18px;
            color: var(--border);
            font-size: 20px;
            z-index: 2;
        }

        /* ========= SCENARIO ========= */
        .scenario-row {
            display: flex;
            align-items: center;
            gap: 48px;
            margin-bottom: 64px;
        }
        .scenario-row:last-child {
            margin-bottom: 0;
        }
        .scenario-row.reverse .scenario-img {
            order: 2;
        }
        .scenario-row.reverse .scenario-text {
            order: 1;
        }
        .scenario-img {
            flex: 1;
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-default);
        }
        .scenario-img img {
            width: 100%;
            display: block;
            transition: transform .5s ease;
        }
        .scenario-img:hover img {
            transform: scale(1.04);
        }
        .scenario-text {
            flex: 1;
        }
        .scenario-text .scenario-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            color: var(--violet);
            background: rgba(124, 108, 238, 0.10);
            padding: 4px 12px;
            border-radius: 16px;
            margin-bottom: 12px;
        }
        .scenario-text h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--ink-night);
            margin-bottom: 12px;
        }
        .scenario-text p {
            color: var(--text-sub);
            font-size: 15px;
            margin-bottom: 14px;
        }
        .scenario-text ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .scenario-text ul li {
            padding: 6px 0;
            padding-left: 24px;
            position: relative;
            font-size: 14px;
            color: var(--text-main);
        }
        .scenario-text ul li::before {
            content: "\f00c";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            position: absolute;
            left: 0;
            color: var(--gold);
            font-size: 12px;
            top: 9px;
        }

        /* ========= STATS ========= */
        .stats-grid {
            display: flex;
            justify-content: space-between;
            border-bottom: 1px solid var(--border);
            padding-bottom: 8px;
        }
        .stat-item {
            flex: 1;
            text-align: center;
            position: relative;
            padding: 16px 12px;
        }
        .stat-item:not(:last-child)::after {
            content: "";
            position: absolute;
            right: 0;
            top: 20%;
            height: 60%;
            width: 1px;
            background: var(--border);
        }
        .stat-num {
            font-size: 44px;
            font-weight: 800;
            color: var(--gold);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 13px;
            color: var(--text-sub);
            margin-top: 6px;
        }

        /* ========= FAQ ========= */
        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            border-bottom: 1px solid var(--border);
            transition: background .2s;
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }
        .faq-item:hover {
            background: rgba(246, 247, 251, 0.6);
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 12px;
            cursor: pointer;
            font-weight: 600;
            font-size: 15px;
            color: var(--ink-night);
            gap: 12px;
        }
        .faq-question i {
            transition: transform .3s;
            color: var(--gold);
            font-size: 14px;
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
            padding: 0 12px;
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.8;
        }
        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-bottom: 18px;
        }

        /* ========= CTA ========= */
        .cta-section {
            background: var(--ink-night);
            position: relative;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            padding: 88px 0;
            color: #fff;
        }
        .cta-section::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(16, 22, 48, 0.86);
        }
        .cta-inner {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            flex-wrap: wrap;
        }
        .cta-text h2 {
            font-size: 30px;
            font-weight: 800;
            margin-bottom: 10px;
        }
        .cta-text p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
            max-width: 460px;
        }
        .cta-action {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ========= ADJACENT ========= */
        .adjacent-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px;
            display: flex;
            gap: 20px;
            align-items: center;
            transition: box-shadow .3s, transform .3s;
            height: 100%;
        }
        .adjacent-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }
        .adjacent-icon {
            width: 52px;
            height: 52px;
            flex-shrink: 0;
            border-radius: 14px;
            background: rgba(245, 185, 66, 0.12);
            color: var(--gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
        }
        .adjacent-icon.violet {
            background: rgba(124, 108, 238, 0.12);
            color: var(--violet);
        }
        .adjacent-card h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--ink-night);
            margin-bottom: 6px;
        }
        .adjacent-card p {
            font-size: 13px;
            color: var(--text-sub);
            margin: 0;
        }

        /* ========= FOOTER ========= */
        .site-footer {
            background: var(--ink-night);
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 24px;
            font-size: 14px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 36px;
            margin-bottom: 44px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 20px;
            color: #fff;
            margin-bottom: 14px;
        }
        .footer-desc {
            color: rgba(255, 255, 255, 0.55);
            font-size: 13px;
            line-height: 1.8;
            margin: 0;
        }
        .footer-col-title {
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            margin-bottom: 16px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 13px;
            display: inline-block;
            padding: 5px 0;
            transition: color .2s, transform .2s;
        }
        .footer-links li a:hover {
            color: var(--gold);
            transform: translateX(3px);
        }
        .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 5px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-contact li i {
            color: var(--gold);
            width: 16px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom a:hover {
            color: var(--gold);
        }

        /* ========= RESPONSIVE ========= */
        @media (max-width: 1199.98px) {
            .header-actions .search-wrap {
                width: 170px;
            }
        }
        @media (max-width: 991.98px) {
            .main-nav {
                display: none;
            }
            .header-actions .search-wrap,
            .header-actions .login-link,
            .header-actions .btn-gold {
                display: none;
            }
            .nav-toggle {
                display: inline-flex;
                align-items: center;
                justify-content: center;
            }
            .scenario-row,
            .scenario-row.reverse {
                flex-direction: column;
                gap: 24px;
            }
            .scenario-row.reverse .scenario-img,
            .scenario-row.reverse .scenario-text {
                order: initial;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .cta-inner {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 767.98px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
            .banner-content h1 {
                font-size: 30px;
            }
            .banner-content p {
                font-size: 15px;
            }
            .section {
                padding: 56px 0;
            }
            .section-header h2 {
                font-size: 26px;
            }
            .stats-grid {
                flex-wrap: wrap;
                gap: 16px 0;
            }
            .stat-item {
                flex: 0 0 50%;
            }
            .stat-item:nth-child(2)::after {
                display: none;
            }
            .stat-num {
                font-size: 34px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .adjacent-card {
                flex-direction: column;
                text-align: center;
            }
            .cta-action {
                justify-content: center;
            }
            .btn-gold,
            .btn-outline-light {
                height: 42px;
                padding: 0 18px;
            }
        }
        @media (max-width: 520px) {
            .banner-content h1 {
                font-size: 26px;
            }
            .banner-btn-group {
                flex-direction: column;
                width: 100%;
            }
            .banner-btn-group .btn-gold,
            .banner-btn-group .btn-outline-light {
                width: 100%;
            }
            .scenario-text h3 {
                font-size: 20px;
            }
            .service-card {
                padding: 20px 16px;
            }
            .stat-item {
                flex: 0 0 100%;
                border-bottom: 1px solid var(--border);
                padding: 16px 0;
            }
            .stat-item:not(:last-child)::after {
                display: none;
            }
            .step-arrow {
                display: none;
            }
        }
        @media (min-width: 992px) {
            .desktop-login-btn {
                display: inline-flex;
            }
        }

/* roulang page: article */
:root {
  --c-primary: #101630;
  --c-primary-light: #1c2a4a;
  --c-gold: #F5B942;
  --c-gold-dark: #d9a032;
  --c-purple: #7C6CEE;
  --c-purple-soft: rgba(124,108,238,.12);
  --c-bg: #F6F7FB;
  --c-card: #FFFFFF;
  --c-text: #23263B;
  --c-text-sub: #6B7280;
  --c-border: #E5E7EB;
  --radius-card: 12px;
  --radius-btn: 8px;
  --shadow-1: 0 2px 12px rgba(16,22,48,.06);
  --shadow-2: 0 10px 28px rgba(16,22,48,.12);
  --font-main: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --container-w: 1200px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  background: var(--c-bg);
  color: var(--c-text);
  line-height: 1.75;
  margin: 0;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
.container-custom { max-width: var(--container-w); margin: 0 auto; padding: 0 24px; }
section { width: 100%; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 998;
  background: rgba(246,247,251,.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(229,231,235,.7);
  transition: background .35s, box-shadow .35s;
}
.site-header.scrolled {
  background: rgba(246,247,251,.98);
  box-shadow: 0 8px 28px rgba(16,22,48,.08);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 64px;
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 21px;
  font-weight: 800;
  color: var(--c-primary);
  white-space: nowrap;
}
.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--c-gold), #ffd678);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--c-primary);
  font-size: 16px;
  box-shadow: 0 4px 14px rgba(245,185,66,.4);
}
.main-nav { display: flex; gap: 4px; align-items: center; }
.main-nav a {
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--c-text);
  border-radius: 8px;
  transition: all .2s ease;
}
.main-nav a:hover { background: rgba(124,108,238,.08); color: var(--c-primary); }
.main-nav a.active {
  background: rgba(245,185,66,.15);
  color: var(--c-gold-dark);
  font-weight: 700;
}
.header-actions { display: flex; align-items: center; gap: 14px; }
.header-search {
  position: relative;
  width: 220px;
}
.header-search i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 14px;
  color: #a0a6b8;
  pointer-events: none;
}
.header-search input {
  width: 100%;
  height: 40px;
  border: 1px solid var(--c-border);
  border-radius: 20px;
  background: #fff;
  padding: 0 14px 0 38px;
  font-size: 14px;
  transition: all .3s ease;
}
.header-search input:focus {
  outline: none;
  border-color: var(--c-gold);
  box-shadow: 0 0 0 4px rgba(245,185,66,.18);
}
.login-link {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-text);
  padding: 8px 4px;
  transition: color .2s;
}
.login-link:hover { color: var(--c-gold-dark); }
.btn-free-login {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 22px;
  background: var(--c-gold);
  color: var(--c-primary);
  font-size: 15px;
  font-weight: 700;
  border-radius: var(--radius-btn);
  transition: all .3s ease;
  box-shadow: 0 4px 14px rgba(245,185,66,.25);
  border: none;
  white-space: nowrap;
}
.btn-free-login:hover {
  background: #ffc65c;
  color: var(--c-primary);
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgba(245,185,66,.36);
}
.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  padding: 10px;
  border: 1px solid var(--c-border);
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
}
.mobile-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--c-primary);
  border-radius: 2px;
}
.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: 300px;
  height: 100vh;
  background: #fff;
  z-index: 1002;
  padding: 28px 24px;
  transform: translateX(110%);
  transition: transform .35s ease;
  box-shadow: -20px 0 40px rgba(16,22,48,.15);
  overflow-y: auto;
}
.mobile-drawer.open { transform: translateX(0); }
.drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(16,22,48,.5);
  z-index: 1001;
  opacity: 0;
  pointer-events: none;
  transition: opacity .35s ease;
}
.drawer-backdrop.show { opacity: 1; pointer-events: auto; }
.drawer-header { margin-bottom: 20px; border-bottom: 1px solid #f0f1f5; padding-bottom: 20px; }
.drawer-search {
  position: relative;
  width: 100%;
  margin-bottom: 14px;
}
.drawer-search i {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: #a0a6b8;
  font-size: 14px;
}
.drawer-search input {
  width: 100%;
  height: 44px;
  border: 1px solid var(--c-border);
  border-radius: 20px;
  padding: 0 14px 0 38px;
  font-size: 14px;
}
.drawer-search input:focus { outline: none; border-color: var(--c-gold); box-shadow: 0 0 0 4px rgba(245,185,66,.18); }
.mobile-drawer .btn-free-login { width: 100%; }
.drawer-close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 34px;
  height: 34px;
  border: 1px solid var(--c-border);
  border-radius: 8px;
  background: #fff;
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-text);
}
.drawer-nav { list-style: none; margin: 0; padding: 0; }
.drawer-nav a {
  display: block;
  padding: 14px 12px;
  border-bottom: 1px solid #f0f1f5;
  font-size: 16px;
  font-weight: 500;
  color: var(--c-text);
}
.drawer-nav a.active { color: var(--c-gold-dark); font-weight: 700; background: rgba(245,185,66,.08); border-radius: 8px; }

/* ===== Page Banner ===== */
.page-banner {
  position: relative;
  padding: 42px 0 50px;
  background: linear-gradient(135deg, #101630 0%, #1c2a4a 55%, #2a2260 100%);
  overflow: hidden;
}
.page-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(2px 2px at 20% 30%, rgba(255,255,255,.35) 0, transparent 100%),
                    radial-gradient(2px 2px at 70% 60%, rgba(255,255,255,.25) 0, transparent 100%),
                    radial-gradient(1px 1px at 45% 20%, rgba(255,255,255,.4) 0, transparent 100%);
}
.page-banner::after {
  content: "";
  position: absolute;
  right: -90px;
  bottom: -140px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124,108,238,.38), transparent 70%);
}
.page-banner .container-custom { position: relative; z-index: 2; }
.breadcrumb-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 14px;
  color: #a8b0c6;
  margin-bottom: 14px;
}
.breadcrumb-nav a { color: #a8b0c6; transition: color .2s; }
.breadcrumb-nav a:hover { color: var(--c-gold); }
.breadcrumb-nav .sep { color: #556080; }
.breadcrumb-nav .current { color: #e6e9f4; font-weight: 600; }
.banner-lead {
  font-size: 18px;
  color: #c3c9db;
  margin: 0;
  font-weight: 400;
  letter-spacing: .2px;
}

/* ===== Article Wrap ===== */
.article-wrap { padding: 56px 0 24px; }
.article-card {
  background: var(--c-card);
  border-radius: 16px;
  box-shadow: var(--shadow-1);
  overflow: hidden;
  max-width: 920px;
  margin: 0 auto;
}
.article-cover {
  width: 100%;
  height: 320px;
  object-fit: cover;
  display: block;
}
.article-header { padding: 36px 40px 0; }
.article-header h1 {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--c-text);
  margin: 14px 0 18px;
  letter-spacing: .2px;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--c-text-sub);
  font-size: 14px;
  align-items: center;
  margin-bottom: 26px;
}
.article-meta i { margin-right: 5px; color: #a0a6b8; }
.badge-cat {
  display: inline-flex;
  align-items: center;
  padding: 5px 14px;
  background: var(--c-purple-soft);
  color: var(--c-purple);
  font-size: 12px;
  font-weight: 600;
  border-radius: 20px;
  line-height: 1.4;
}
.article-body {
  max-width: 720px;
  margin: 0 auto;
  padding: 4px 40px 30px;
}
.article-body h2 {
  font-size: 26px;
  font-weight: 800;
  color: var(--c-text);
  margin: 36px 0 16px;
  line-height: 1.4;
}
.article-body h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--c-text);
  margin: 28px 0 12px;
  line-height: 1.5;
}
.article-body h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--c-text);
  margin: 22px 0 10px;
}
.article-body p {
  font-size: 16px;
  line-height: 1.85;
  color: var(--c-text);
  margin-bottom: 20px;
}
.article-body ul, .article-body ol {
  margin: 0 0 20px 20px;
  padding: 0;
}
.article-body li {
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 8px;
}
.article-body a { color: var(--c-purple); text-decoration: underline; transition: all .2s; }
.article-body a:hover { color: var(--c-gold-dark); }
.article-body blockquote {
  border-left: 4px solid var(--c-gold);
  background: #faf8f4;
  padding: 16px 22px;
  border-radius: 0 8px 8px 0;
  margin: 24px 0;
  color: var(--c-text-sub);
  font-size: 15px;
}
.article-body img {
  width: 100%;
  border-radius: var(--radius-card);
  margin: 24px 0;
  box-shadow: var(--shadow-1);
}
.article-body pre {
  background: var(--c-primary);
  color: #e2e6f3;
  padding: 20px 24px;
  border-radius: var(--radius-card);
  overflow-x: auto;
  margin: 24px 0;
  font-size: 14px;
  line-height: 1.7;
}
.article-body code {
  background: #f1f2f7;
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 14px;
  color: var(--c-purple);
}
.article-body pre code { background: transparent; padding: 0; color: inherit; }
.article-body table {
  width: 100%;
  margin: 24px 0;
  border-collapse: collapse;
  font-size: 14px;
}
.article-body table th,
.article-body table td {
  border: 1px solid var(--c-border);
  padding: 10px 14px;
  text-align: left;
}
.article-body table th { background: var(--c-bg); font-weight: 700; }
.article-body hr {
  border: none;
  border-top: 1px solid var(--c-border);
  margin: 32px 0;
}
.article-tags {
  max-width: 720px;
  margin: 0 auto;
  padding: 20px 40px 36px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  border-top: 1px solid #f0f1f5;
}
.article-tags a {
  display: inline-flex;
  padding: 6px 16px;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  color: var(--c-text-sub);
  transition: all .2s ease;
}
.article-tags a:hover {
  border-color: var(--c-gold);
  color: var(--c-gold-dark);
  background: rgba(245,185,66,.08);
}

/* ===== Article Pager ===== */
.article-pager {
  max-width: 920px;
  margin: 24px auto 0;
  padding: 0 0 24px;
}
.pager-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: #fff;
  border-radius: var(--radius-card);
  padding: 20px 26px;
  box-shadow: var(--shadow-1);
}
.pager-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-text);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  max-width: 48%;
  transition: color .2s ease;
}
.pager-link:hover { color: var(--c-gold-dark); }
.pager-link i { color: var(--c-gold-dark); }
.pager-next { justify-content: flex-end; text-align: right; }

/* ===== Related ===== */
.related-section {
  padding: 80px 0 84px;
  background: var(--c-bg);
}
.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 38px;
}
.section-heading h2 {
  font-size: 30px;
  font-weight: 800;
  color: var(--c-text);
  margin: 0;
  letter-spacing: .2px;
}
.view-all {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--c-purple);
  transition: all .2s;
}
.view-all:hover { color: var(--c-gold-dark); }
.related-card {
  display: block;
  background: #fff;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-1);
  height: 100%;
  transition: all .35s ease;
  text-decoration: none;
}
.related-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-2);
}
.related-card img {
  width: 100%;
  height: 184px;
  object-fit: cover;
  display: block;
}
.related-card-body { padding: 20px 22px 22px; }
.related-card-body .badge-cat { margin-bottom: 8px; }
.related-card-body h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.5;
  margin: 10px 0 8px;
  transition: color .2s;
}
.related-card:hover .related-card-body h3 { color: var(--c-gold-dark); }
.related-meta {
  font-size: 13px;
  color: var(--c-text-sub);
}

/* ===== CTA ===== */
.article-cta {
  position: relative;
  padding: 90px 0;
  background: linear-gradient(rgba(16,22,48,.88), rgba(16,22,48,.95)),
              url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  text-align: center;
  overflow: hidden;
}
.article-cta::before {
  content: "";
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245,185,66,.2), transparent 70%);
  top: -180px;
  left: -100px;
}
.article-cta .container-custom { position: relative; z-index: 2; }
.article-cta h2 {
  font-size: 32px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
  line-height: 1.4;
}
.article-cta p {
  color: #b9c0d4;
  font-size: 16px;
  margin-bottom: 32px;
}
.btn-gold {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 34px;
  background: var(--c-gold);
  color: var(--c-primary);
  font-size: 16px;
  font-weight: 700;
  border-radius: var(--radius-btn);
  border: none;
  transition: all .3s ease;
  box-shadow: 0 6px 20px rgba(245,185,66,.3);
}
.btn-gold:hover {
  background: #ffc65c;
  color: var(--c-primary);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(245,185,66,.42);
}

/* ===== Empty State ===== */
.empty-state {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 90px 24px;
  background: var(--c-bg);
}
.empty-star {
  width: 66px;
  height: 66px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-gold), #ffd678);
  color: var(--c-primary);
  font-size: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  box-shadow: 0 12px 32px rgba(245,185,66,.35);
}
.empty-state h2 {
  font-size: 28px;
  font-weight: 800;
  color: var(--c-text);
  margin-bottom: 12px;
}
.empty-state p {
  color: var(--c-text-sub);
  font-size: 16px;
  margin-bottom: 28px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--c-primary);
  color: #aab2cf;
  padding: 64px 0 26px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
  gap: 40px;
  padding-bottom: 42px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
}
.footer-brand .brand-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--c-gold), #ffd678);
  color: var(--c-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}
.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  color: #aab2cf;
  max-width: 320px;
  margin: 0;
}
.footer-col-title {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
}
.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer-links li { margin-bottom: 10px; }
.footer-links a {
  color: #aab2cf;
  font-size: 14px;
  transition: color .2s;
}
.footer-links a:hover { color: var(--c-gold); }
.footer-contact {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer-contact li {
  font-size: 14px;
  margin-bottom: 12px;
  color: #aab2cf;
}
.footer-contact i {
  width: 20px;
  color: var(--c-gold);
  margin-right: 4px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 20px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  font-size: 13px;
  color: #75809e;
}
.footer-bottom a { color: #75809e; transition: color .2s; }
.footer-bottom a:hover { color: var(--c-gold); }

/* ===== Bootstrap Overrides ===== */
.btn:focus, .btn:active:focus { box-shadow: none; }
.form-control:focus {
  border-color: var(--c-gold);
  box-shadow: 0 0 0 4px rgba(245,185,66,.18);
}

/* ===== Responsive ===== */
@media (min-width: 768px) and (max-width: 1024px) {
  .header-search { width: 170px; }
  .main-nav a { padding: 8px 10px; font-size: 14px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .article-body { padding-left: 30px; padding-right: 30px; }
  .article-header { padding-left: 30px; padding-right: 30px; }
  .article-tags { padding-left: 30px; padding-right: 30px; }
}
@media (max-width: 767px) {
  .main-nav, .header-actions { display: none; }
  .mobile-toggle { display: flex; }
  .header-inner { height: 60px; }
  .brand-logo { font-size: 18px; }
  .page-banner { padding: 28px 0 36px; }
  .banner-lead { font-size: 15px; }
  .article-wrap { padding: 28px 0 16px; }
  .article-card { border-radius: 12px; }
  .article-cover { height: 200px; }
  .article-header { padding: 24px 20px 0; }
  .article-header h1 { font-size: 26px; margin-bottom: 14px; }
  .article-meta { gap: 12px; font-size: 13px; }
  .article-body { padding: 0 20px 18px; }
  .article-body p { font-size: 15px; }
  .article-body h2 { font-size: 22px; }
  .article-body h3 { font-size: 18px; }
  .article-body blockquote { padding: 14px 16px; }
  .article-tags { padding: 16px 20px 26px; }
  .pager-inner { flex-direction: column; align-items: flex-start; gap: 12px; padding: 18px 20px; }
  .pager-link { max-width: 100%; }
  .pager-next { justify-content: flex-start; text-align: left; }
  .related-section { padding: 52px 0; }
  .section-heading h2 { font-size: 24px; }
  .related-card img { height: 160px; }
  .article-cta { padding: 60px 0; }
  .article-cta h2 { font-size: 24px; }
  .btn-gold { width: 100%; max-width: 320px; height: 46px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .site-footer { padding: 48px 0 20px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .empty-state { min-height: 50vh; padding: 60px 24px; }
}

/* roulang page: category2 */
:root {
            --primary: #101630;
            --primary-light: #1b2242;
            --gold: #F5B942;
            --gold-hover: #ffcc55;
            --purple: #7C6CEE;
            --purple-light: #eceafe;
            --bg-light: #F6F7FB;
            --card-bg: #FFFFFF;
            --text-main: #23263B;
            --text-secondary: #6B7280;
            --border: #E5E7EB;
            --radius-card: 12px;
            --radius-btn: 8px;
            --radius-search: 20px;
            --shadow-sm: 0 2px 12px rgba(16, 22, 48, 0.06);
            --shadow-hover: 0 10px 28px rgba(16, 22, 48, 0.12);
            --space-section: 90px;
            --font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

        *,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background: #fff;
            color: var(--text-main);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color .2s ease;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input {
            font-family: inherit;
            border: none;
            outline: none;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

        .container-custom {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section-padding {
            padding: var(--space-section) 0;
        }

        .section-title-wrap {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-title-wrap .section-tag {
            display: inline-block;
            background: var(--purple-light);
            color: var(--purple);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 16px;
            border-radius: 20px;
            margin-bottom: 12px;
            letter-spacing: 1px;
        }

        .section-title-wrap h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
        }

        .section-title-wrap .section-desc {
            color: var(--text-secondary);
            font-size: 16px;
            max-width: 600px;
            margin: 12px auto 0;
        }

        .btn-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 44px;
            padding: 0 32px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: all .25s ease;
            cursor: pointer;
            line-height: 44px;
        }

        .btn-gold {
            background: var(--gold);
            color: var(--primary) !important;
            box-shadow: 0 4px 16px rgba(245, 185, 66, 0.35);
        }

        .btn-gold:hover {
            background: var(--gold-hover);
            box-shadow: 0 8px 24px rgba(245, 185, 66, 0.45);
            transform: translateY(-2px);
        }

        .btn-outline-light {
            border: 1px solid rgba(255, 255, 255, 0.55);
            color: #fff !important;
            background: transparent;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            transform: translateY(-2px);
        }

        .btn-outline-primary {
            border: 1px solid var(--primary);
            color: var(--primary) !important;
            background: transparent;
        }

        .btn-outline-primary:hover {
            background: rgba(16, 22, 48, 0.06);
        }

        .badge-custom {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            padding: 4px 12px;
            border-radius: 8px;
            background: var(--purple-light);
            color: var(--purple);
        }

        .badge-gold {
            background: rgba(245, 185, 66, 0.14);
            color: #b07d16;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 64px;
            background: rgba(16, 22, 48, 0.88);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            z-index: 1000;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: background .3s ease, box-shadow .3s ease;
        }

        .site-header.scrolled {
            background: rgba(16, 22, 48, 0.98);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
        }

        .header-inner {
            height: 64px;
            display: flex;
            align-items: center;
            gap: 24px;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 800;
            font-size: 20px;
            color: #fff;
            white-space: nowrap;
            flex-shrink: 0;
        }

        .brand-icon {
            width: 34px;
            height: 34px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--gold), #f8c96a);
            border-radius: 9px;
            color: var(--primary);
            font-size: 16px;
            box-shadow: 0 0 0 0 rgba(245, 185, 66, 0);
            animation: brand-glow 3s ease-in-out infinite;
        }

        @keyframes brand-glow {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(245, 185, 66, 0.3);
            }
            50% {
                box-shadow: 0 0 18px rgba(245, 185, 66, 0.45);
            }
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
            flex: 1;
        }

        .main-nav a {
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
            font-weight: 500;
            position: relative;
            padding: 6px 2px;
            transition: color .2s;
            white-space: nowrap;
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--gold);
            border-radius: 2px;
            transition: width .3s ease;
        }

        .main-nav a:hover {
            color: #fff;
        }

        .main-nav a.active {
            color: var(--gold);
        }

        .main-nav a.active::after {
            width: 100%;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .search-wrap {
            position: relative;
        }

        .search-wrap input {
            width: 220px;
            height: 38px;
            border-radius: var(--radius-search);
            border: 1px solid rgba(255, 255, 255, 0.14);
            background: rgba(255, 255, 255, 0.08);
            padding: 0 40px 0 16px;
            font-size: 13px;
            color: #fff;
            transition: all .25s ease;
        }

        .search-wrap input::placeholder {
            color: rgba(255, 255, 255, 0.45);
        }

        .search-wrap input:focus {
            border-color: var(--gold);
            background: rgba(255, 255, 255, 0.13);
            box-shadow: 0 0 0 3px rgba(245, 185, 66, 0.18);
        }

        .search-wrap i {
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: rgba(255, 255, 255, 0.5);
            font-size: 14px;
            pointer-events: none;
        }

        .nav-login {
            color: rgba(255, 255, 255, 0.8);
            font-size: 14px;
            font-weight: 500;
            padding: 8px 0;
        }

        .nav-login:hover {
            color: var(--gold);
        }

        .btn-free {
            height: 44px;
            padding: 0 26px;
            line-height: 44px;
            border-radius: var(--radius-btn);
            background: var(--gold);
            color: var(--primary) !important;
            font-weight: 700;
            font-size: 14px;
            box-shadow: 0 4px 16px rgba(245, 185, 66, 0.35);
            transition: all .25s ease;
        }

        .btn-free:hover {
            background: var(--gold-hover);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(245, 185, 66, 0.5);
        }

        .hamburger {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 18px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
        }

        /* 移动端抽屉 */
        .mobile-drawer {
            position: fixed;
            top: 64px;
            left: 0;
            width: 100%;
            background: var(--primary);
            padding: 24px;
            z-index: 999;
            transform: translateY(-120%);
            transition: transform .4s cubic-bezier(.77, 0, .18, 1);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .mobile-drawer.open {
            transform: translateY(0);
        }

        .mobile-drawer .drawer-search {
            margin-bottom: 20px;
        }

        .mobile-drawer .drawer-search input {
            width: 100%;
            height: 44px;
            border-radius: var(--radius-search);
            border: 1px solid rgba(255, 255, 255, 0.15);
            background: rgba(255, 255, 255, 0.07);
            padding: 0 46px 0 16px;
            color: #fff;
        }

        .mobile-drawer .drawer-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-drawer .drawer-nav a {
            display: block;
            padding: 12px 8px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 16px;
            border-radius: 8px;
            transition: background .2s, color .2s;
        }

        .mobile-drawer .drawer-nav a:hover {
            background: rgba(255, 255, 255, 0.06);
            color: var(--gold);
        }

        .mobile-drawer .drawer-nav a.active {
            color: var(--gold);
            background: rgba(245, 185, 66, 0.08);
        }

        .drawer-bottom {
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            gap: 12px;
        }

        .drawer-bottom .btn-free {
            flex: 1;
            text-align: center;
        }

        .drawer-bottom .nav-login {
            flex: 0 0 auto;
            padding: 0 16px;
            display: flex;
            align-items: center;
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-btn);
        }

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            min-height: 480px;
            display: flex;
            align-items: center;
            padding: 120px 0 80px;
            background: linear-gradient(145deg, #101630 0%, #1b2242 60%, #232a55 100%);
            overflow: hidden;
            color: #fff;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('/assets/images/backpic/back-1.png') no-repeat center center/cover;
            opacity: 0.18;
            z-index: 0;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            top: -40%;
            left: -20%;
            width: 600px;
            height: 600px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(124, 108, 238, 0.25) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }

        .page-hero .hero-content {
            position: relative;
            z-index: 1;
            max-width: 720px;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(245, 185, 66, 0.12);
            color: var(--gold);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: 0.5px;
        }

        .hero-tag i {
            font-size: 12px;
        }

        .page-hero h1 {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.25;
            color: #fff;
            margin-bottom: 20px;
        }

        .page-hero h1 span {
            color: var(--gold);
        }

        .page-hero .hero-sub {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.75);
            line-height: 1.65;
            margin-bottom: 36px;
        }

        .hero-btns {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-stats {
            display: flex;
            gap: 36px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .hero-stats .stat-item .num {
            font-size: 28px;
            font-weight: 800;
            color: var(--gold);
            line-height: 1.2;
        }

        .hero-stats .stat-item .label {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.55);
        }

        .hero-cover {
            position: absolute;
            right: 24px;
            bottom: 0;
            width: 320px;
            height: 240px;
            z-index: 1;
            opacity: 0.9;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
            display: none;
        }

        @media(min-width:1200px) {
            .hero-cover {
                display: block;
            }
        }

        /* ===== 登录方式 ===== */
        .login-methods {
            background: var(--bg-light);
        }

        .methods-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 24px;
        }

        .method-card {
            background: var(--card-bg);
            border-radius: var(--radius-card);
            padding: 32px;
            box-shadow: var(--shadow-sm);
            transition: all .3s ease;
            border: 1px solid transparent;
        }

        .method-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: rgba(245, 185, 66, 0.2);
        }

        .method-card.large {
            background: linear-gradient(145deg, #fff 0%, #fcf9f3 100%);
            border-left: 4px solid var(--gold);
        }

        .method-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
            background: var(--purple-light);
            color: var(--purple);
        }

        .method-card.large .method-icon {
            background: rgba(245, 185, 66, 0.12);
            color: #c9901a;
        }

        .method-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .method-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .method-card .method-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .method-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--purple) !important;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap .2s;
        }

        .method-link:hover {
            gap: 8px;
            color: #5b4bd6 !important;
        }

        /* ===== 登录流程 ===== */
        .login-steps {
            background: #fff;
            position: relative;
        }

        .steps-wrap {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            position: relative;
        }

        .steps-wrap::before {
            content: '';
            position: absolute;
            top: 34px;
            left: 50%;
            width: 80%;
            height: 2px;
            background: linear-gradient(90deg, var(--gold), rgba(245, 185, 66, 0.2));
            transform: translateX(-50%);
            z-index: 0;
        }

        .step-item {
            /* no arrow needed */
        }

        .step-item::before {
            content: '';
            position: absolute;
            top: 34px;
            left: 50%;
            width: 80%;
            height: 2px;
            background: linear-gradient(90deg, var(--gold), rgba(245, 185, 66, 0.2));
            transform: translateX(-50%);
            z-index: 0;
        }

        .steps-wrap .step-item {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 0 12px;
        }

        .step-num {
            width: 68px;
            height: 68px;
            margin: 0 auto 20px;
            border-radius: 20px;
            background: var(--primary);
            color: var(--gold);
            font-size: 24px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 24px rgba(16, 22, 48, 0.2);
            border: 3px solid rgba(245, 185, 66, 0.2);
            position: relative;
            z-index: 1;
        }

        .step-item h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-main);
        }

        .step-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            max-width: 220px;
            margin: 0 auto;
        }

        /* ===== 数据指标 ===== */
        .features-data {
            background: var(--primary);
            color: #fff;
            padding: 80px 0;
        }

        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            text-align: center;
        }

        .data-item {
            padding: 32px 16px;
            border-right: 1px solid rgba(255, 255, 255, 0.08);
        }

        .data-item:last-child {
            border-right: none;
        }

        .data-item .num {
            font-size: 44px;
            font-weight: 800;
            color: var(--gold);
            line-height: 1.1;
            font-family: inherit;
        }

        .data-item .num + span {
            display: block;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 10px;
        }

        .data-item .num sup {
            font-size: 22px;
            font-weight: 600;
        }

        /* ===== 图文分区 ===== */
        .dual-section {
            background: var(--bg-light);
        }

        .dual-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .dual-visual {
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-hover);
            position: relative;
        }

        .dual-visual img {
            width: 100%;
            height: 360px;
            object-fit: cover;
        }

        .dual-visual::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(45deg, rgba(16, 22, 48, 0.1), rgba(245, 185, 66, 0.08));
            pointer-events: none;
        }

        .dual-content h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 18px;
        }

        .dual-content p {
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .dual-content .feature-list {
            margin-top: 24px;
        }

        .feature-list li {
            display: flex;
            gap: 12px;
            align-items: flex-start;
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
            font-size: 15px;
            color: var(--text-main);
        }

        .feature-list li:last-child {
            border-bottom: none;
        }

        .feature-list li i {
            color: var(--gold);
            margin-top: 5px;
            font-size: 14px;
            flex-shrink: 0;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: #fff;
        }

        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }

        .faq-item:first-child {
            border-top: 1px solid var(--border);
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding: 22px 8px;
            cursor: pointer;
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            transition: background .2s;
        }

        .faq-question:hover {
            background: #fafbfd;
        }

        .faq-item.active .faq-question {
            color: var(--purple);
        }

        .faq-icon {
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--purple-light);
            color: var(--purple);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            flex-shrink: 0;
            transition: transform .35s ease;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            background: var(--purple);
            color: #fff;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .4s ease;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .faq-item.active .faq-answer {
            max-height: 260px;
            padding-bottom: 24px;
        }

        /* ===== 相关分类 ===== */
        .related-section {
            background: var(--bg-light);
        }

        .related-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .related-card {
            background: #fff;
            border-radius: var(--radius-card);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            display: flex;
            gap: 20px;
            align-items: center;
            transition: all .3s ease;
            border: 1px solid var(--border);
        }

        .related-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: rgba(245, 185, 66, 0.3);
        }

        .related-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            flex-shrink: 0;
            background: var(--purple-light);
            color: var(--purple);
        }

        .related-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .related-card p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
        }

        .related-card .go-link {
            font-size: 13px;
            color: var(--purple);
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            margin-top: 8px;
        }

        .related-card .go-link:hover {
            gap: 8px;
        }

        /* ===== CTA ===== */
        .cta-contact {
            background: var(--primary);
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-contact::before {
            content: '';
            position: absolute;
            top: -80px;
            right: -80px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(245, 185, 66, 0.15), transparent 70%);
            pointer-events: none;
        }

        .cta-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .cta-left h2 {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .cta-left p {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            line-height: 1.7;
            margin-bottom: 8px;
        }

        .cta-left ul {
            margin-top: 20px;
        }

        .cta-left ul li {
            display: flex;
            gap: 10px;
            align-items: center;
            padding: 6px 0;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
        }

        .cta-left ul li i {
            color: var(--gold);
            font-size: 14px;
        }

        .cta-form {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 16px;
            padding: 32px;
            backdrop-filter: blur(6px);
        }

        .cta-form .form-label {
            color: rgba(255, 255, 255, 0.85);
            font-size: 14px;
            font-weight: 500;
            margin-bottom: 6px;
        }

        .cta-form .form-control {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.12);
            color: #fff;
            border-radius: 8px;
            height: 44px;
            font-size: 14px;
            transition: all .25s ease;
        }

        .cta-form .form-control::placeholder {
            color: rgba(255, 255, 255, 0.35);
        }

        .cta-form .form-control:focus {
            border-color: var(--gold);
            box-shadow: 0 0 0 3px rgba(245, 185, 66, 0.15);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
        }

        .cta-form textarea.form-control {
            height: auto;
            min-height: 80px;
            padding-top: 12px;
            resize: vertical;
        }

        .cta-form .btn-gold {
            width: 100%;
            margin-top: 8px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.75);
            padding: 64px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .footer-brand .brand-icon {
            width: 32px;
            height: 32px;
            background: var(--gold);
            border-radius: 8px;
            color: var(--primary);
            font-size: 15px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .footer-desc {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }

        .footer-col-title {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 8px;
        }

        .footer-col-title::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 24px;
            height: 2px;
            background: var(--gold);
            border-radius: 2px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            transition: color .2s, padding-left .2s;
        }

        .footer-links a:hover {
            color: var(--gold);
            padding-left: 4px;
        }

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-contact li {
            display: flex;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            align-items: center;
        }

        .footer-contact li i {
            color: var(--gold);
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            margin: 0;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a:hover {
            color: var(--gold);
        }

        /* ===== 响应式 ===== */
        @media(max-width:1024px) {
            .main-nav {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .nav-actions .search-wrap,
            .nav-actions .nav-login {
                display: none;
            }
            .btn-free {
                margin-left: auto;
            }
            .methods-grid {
                grid-template-columns: 1fr 1fr;
            }
            .method-card.large {
                grid-column: 1 / -1;
            }
            .steps-wrap {
                grid-template-columns: repeat(2, 1fr);
                row-gap: 36px;
            }
            .steps-wrap::before {
                display: none;
            }
            .data-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .data-item {
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            }
            .data-item:nth-child(2n) {
                border-left: 1px solid rgba(255, 255, 255, 0.06);
            }
            .dual-wrap {
                grid-template-columns: 1fr;
            }
            .cta-wrap {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .page-hero h1 {
                font-size: 40px;
            }
        }

        @media(max-width:768px) {
            .site-header {
                height: 60px;
            }
            .header-inner {
                height: 60px;
                gap: 12px;
            }
            .brand-logo {
                font-size: 18px;
            }
            .brand-icon {
                width: 30px;
                height: 30px;
                font-size: 14px;
            }
            .btn-free {
                height: 38px;
                padding: 0 18px;
                line-height: 38px;
                font-size: 13px;
            }
            .page-hero {
                min-height: 420px;
                padding: 100px 0 60px;
            }
            .page-hero h1 {
                font-size: 32px;
            }
            .hero-sub {
                font-size: 16px;
            }
            .hero-stats {
                flex-wrap: wrap;
                gap: 20px;
            }
            .hero-stats .stat-item {
                flex: 1 1 40%;
            }
            .methods-grid {
                grid-template-columns: 1fr;
            }
            .method-card.large {
                grid-column: auto;
            }
            .steps-wrap {
                grid-template-columns: 1fr;
                max-width: 360px;
                margin: 0 auto;
            }
            .section-title-wrap h2 {
                font-size: 26px;
            }
            .section-padding {
                padding: 56px 0;
            }
            .data-grid {
                grid-template-columns: 1fr 1fr;
                padding: 24px 0;
            }
            .data-item .num {
                font-size: 34px;
            }
            .dual-visual img {
                height: 240px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .cta-form {
                padding: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        @media(max-width:520px) {
            .hero-btns .btn-custom {
                width: 100%;
            }
            .data-grid {
                grid-template-columns: 1fr;
            }
            .data-item {
                border: none !important;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06) !important;
            }
            .data-item:last-child {
                border-bottom: none !important;
            }
        }